.main{
    margin: 100px 0 0 100px;

    .progress{
        margin-top: 20px;
        border-bottom: 1px solid #000;

        .simple-input{

        }

        .word{

        }

        .operation{
            margin-top: 20px;

            .save{

            }

            .edit{

            }

            .delete{

            }
        }
    }

    .add{
        margin-top: 50px;
    }
}